Trigonaspis synaspis (Hartig, 1841)

Host plants/gall: Q. pet ., Q. pub ., Q. r.—globular galls (5–7 mm Ø) fixed on main veins underside of leaves (- a -); grouped spherical galls (approx. 6 mm Ø) develop on the trunks of old oaks or on thick branches at the base of the trees, close to the ground (- s -).

Distribution in Dobrogea: Valu lui Traian CT county (Ionescu, 1957, Tudor, 1986), forests Caraorman and Letea into Danube Delta, TL county (Mustaţӑ & Andriescu, 1994).